Wednesday, 21 September 2011

RONET (aka. ro-net.eu) seems to be a new netblock occupying the 91.229.90.0/23 (91.229.90.0 - 91.229.91.255) range. This block has several sites recently moved from Netserv Consult SRL (who have a very bad reputation), all of which appear to be involved in criminal activity.

Although the number of sites is very low at present (just 30), the use of a /23 block indicates the perhaps this will be used for more sites very soon. Blocking 91.229.90.0/23 preemptively would probably be an excellent idea.

Of note is the fact that ro-net.eu was only registered two weeks ago with anonymous registration details. Also, note that although the address is in Hungary, the RONET name would indicate that it still has a ROmanian connection.

Another oddity is that the network announces itself as part of AS17088 which is allocated to Currenex, Inc. There seems to be no connection at all between Currenex, Inc and RONET, so perhaps this is an error or some kind of forgery.

You can find a full list of domains and MyWOT ratings in this CSV file. Alternatively, the currently hosted domains are listed below.

Wednesday, 14 September 2011

The payload is the Sinowal trojan. Malicious software is hosted on 95.64.45.43 which is well-known very dark grey hat host Netserv Consult SRL of Romania. Blocking 95.64.0.0/17 (95.64.0.0 - 95.64.127.255) will probably do no harm.

Another fake Bundespolizei today, bundespol.com is registered through a Chinese registrar and then is anonymised through a Chinese WHOIS privacy service

The site doesn't resolve yet, but it is almost identical to bundespol.net which is fingered in this attack. In that case, the fake Bundespolizei site was hosted on 188.229.97.2 which is Netserv Consult SRL in Romania (incidentally, blocking 188.229.0.0/17 will probably do you no harm).

There's a whole bunch of fake Bundespolizei at the moment, but I'm guessing that this particular bunch of scammers may well try the same thing in other countries very soon.

Thursday, 14 July 2011

Almost identical in every way to this injection attack, several Dreamhost sites have been compromised with a page called yahlink.php (it was yahoolink.php before), which is being spammed out through compromised AOL accounts.

It isn't just Dreamhost hosted sites that are being spammed out in this way, but it does appear that well over half the sites are on Dreamhost. It looks like some GoDaddy customers might have been hit too.

In this case, the spammed link directs to krokodilius8.com/gosem11.php which is hosted on 78.129.132.26 which appears to be iomart Hosting Ltd in the UK. All the sites on that server appear to have have fake registrant details, so you can assume that they are bogus:

Users are then directed to another host in Romania, 188.229.89.230 which belongs to Netserv Consult SRL. It is my opinion that there is nothing of value in the entire 188.229.0.0/17 range and you can safely block access to the entire lot.

The final step is to a host called drugstorehealthrisks.net hosted on 90.182.175.232 which looks like a broadband connection in the Czech Republic. The site isn't loading for me, but I guess it's just pharma spam. These other sites are hosted on the same server:

Dreamhost have been informed of the issue but don't appear to have done anything to secure their users. Blocking Dreamhost IPs might be something worth considering depending on what kind of shop you run. I have spotted malicious activity in the following IP ranges:

67.205.0.0/18
69.163.128.0/17
75.119.192.0/19208.97.128.0/18

..although blocking access to the Romanian 188.229.0.0/17 block would also pretty much acheive the same thing without blocking access to any legitimate sites that might be on Dreamhost.

Friday, 8 July 2011

The domain hotmailbox.com often comes up when looking at malicious domains, it's a domain used to provide a bulletproof email address for domain registration. The registrar for hotmailbox.com is the scammer's favourite, BIZCN which probably explains why it has lingered for so long.

There are several hundred domains registered through email accounts at hotmailbox.com, all of them are bogus and follow a similar pattern with bogus US addresses. Most of the domains with active websites are hosted in Romania, in netblocks that have a known bad reputation.

You can download a list of domains, IPs and MyWOT ratings for at least some of these domains here [CSV], or if you just want a plain list then keep scrolling down.

Because the hotmailbox.com domains are all in bad blocks or dedicated servers, then it is possible to block access to these IP ranges or individual boxes to prevent infection. I would recommend blocking the following:

Not every site in those ranges is part of this group, and indeed there may be a few legitimate sites, but you are much more likely to come into contact with a malware site on these IP addresses than a real one, so treat them as "high risk".

If you have any examples of domains using hotmailbox.com that are not listed, then please consider adding them to the Comments.